SIVA – SPRINT Dogbone Foam Tag (M730)
The SIVA SPRINT Dogbone Foam Tag (M730) is a high-performance, foam-backed UHF RFID transponder designed specifically for race timing and athlete identification in marathons, ultramarathons, and sprint races.
Optimized for human-body proximity, the tag’s foam spacer minimizes detuning effects and ensures accurate, consistent read performance even when worn directly on a bib or garment. Each tag is tuned for maximum sensitivity and supplied in roll form for easy integration, with options for custom printing and pre-encoding to suit event branding and management systems.
Manufactured with Impinj Monza M730 IC technology, the Dogbone Foam Tag delivers reliable reads across global frequency bands, making it a trusted choice for professional timing systems used worldwide.
Specification
RF Specification
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Mode of Operation: Passive UHF RFID transponder
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Air Interface Protocol: EPCglobal Class 1 Gen 2 / ISO 18000-63
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Operational Frequency: 860–960 MHz (Global)
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IC Type: Impinj Monza M730
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EPC Memory: 128 bits
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Data Retention: Minimum 10 years
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Write Endurance: 10,000 cycles
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Read Range (2W ERP):
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ETSI: Up to 16.5 m (54 ft)
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FCC: Up to 14 m (46 ft)
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Applicable Surfaces: Non-metallic (optimized for skin proximity)
Physical Specification
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Face Stock: Foam
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Label Size: 100 × 31.75 × 3.0 mm (3.93 × 1.25 × 0.11 in)
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Adhesive: High-performance permanent adhesive
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Delivery Format: Roll form (1,000 tags/roll; 2 rolls/carton)
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Label Pitch: 31.75 mm (1.25 in)
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Core Diameter: 76 mm (3 in)
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Outer Diameter: 385 mm (15.15 in)
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Weight: 0.973 g per label
Environmental Resistance
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Operating Temperature: -40 °C to +85 °C
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Adhesive Service Temperature: -20 °C to +85 °C
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Application Temperature: +10 °C to +38 °C
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Humidity Resistance: 95% at 60 °C (100 h), 50% at 80 °C (100 h)
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Peak Temperature: +260 °C for 1 minute (no performance degradation)
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Water Resistance: IP68 (5 h at 1 m depth)
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Chemical Resistance: Resistant to solvents and moisture
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Expected Lifetime: Multiple years in normal conditions
Personalization Options
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Pre-Encoding: EPC or user memory with permanent or password lock
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Custom Printing: Logos, barcodes, serial numbers, and event artwork available
Installation Guidelines
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Ensure the surface is clean, dry, and even before application.
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Avoid touching the adhesive side during mounting to ensure maximum bond strength .
Order Information
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Part Number: RF.Li.TT.3FT.Dogbone.M730
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Roll Size: 1,000 tags/roll, 2 rolls/carton
Benefits
Performs consistently across extreme temperatures, humidity, and water exposure with IP68-rated sealing.
Available with pre-encoding and event-specific printing, simplifying logistics for large-scale race events.
Foam backing minimizes detuning effects caused by human body proximity, ensuring reliable and precise athlete timing.
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- Device type: RAIN RFID / EPCglobal Gen2v2, NFC Forum Type 5
- Air interface protocol: ISO/IEC 18000-63, ISO/IEC 15693
- Operational frequency: RAIN RFID (865-928 MHz), NFC (13.56 MHz)
- IC type: EM Microelectronic EM4425
- Memory configuration: EM4425 V10 (HF: 64 bit UID, UHF: 288 bit EPC, 256 bit User, 96 bit TID, Shared user memory for HF and UHF: 1472 bits), EM4425 V12 (HF: 64 bit UID, UHF: 96 bit TID, 2048 bit configurable memory can be divided to 96 – 480 bit UHF EPC and shared user memory for HF and UHF, Web authentication uses AES-128 to create a onetime password (OTP) crypto signature)
- Read range: RAIN RFID (On cardboard up to 11m / 36 ft, On plastic up to 10m / 33 ft), HF/NFC (Mobile phone up to 3cm, Fixed reader up to 60cm)
- Applicable surface materials: Non-metallic surfaces
- Tag materials: Printable white PET, resin ribbon recommended
- Background adhesive: High performance acrylic adhesive optimized for low surface energy plastics
- Weight: <1g
- Delivery format: 1000 pcs / reel
- Pitch on reel: 38.1 mm / 5 in
- Reel core inner diameter: 76 mm / 3 in
- Tag dimensions: 36 x 70 x 0.2 mm / 41 x 2.75 x 0.01 in
- Operating temperature: -35degree C to +85degree C / -31F to +185F
- Ambient temperature: -35degree C to +90degree C / -31F to +194F
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- Device type: UHF RFID / EPCglobal Gen2v2
- Operational frequency: Global 860-960MHz
- IC type: Impinj Monza 4E or Alien Higgs 3 (upon special request)
- Memory configuration:
- Monza 4E: EPC 496 bit, User 128 bit, TID 96 bit
- Higgs3: EPC 96-496 bit, User 64-512 bit, TID 96 bit
- Read range (2W ERP): Up to 8 m / 26 ft on windshields
- Applicable surface materials: Glass
- Tag materials:
- Back side (towards windshield): PP with strong adhesion on glass
- Front side (towards driver): Inkjet and thermal transfer printable PP
- Weight: 1g
- Delivery format: 1500 pcs on reel
- Pitch on reel: 33,866 mm / 1,333inch
- Reel core inner diameter: 76 mm / 3inch
- Tag dimensions: 92 x 26 x 0.2 mm / 3.62 x 02 x 0.01 in
- Operating temperature: -35degree C to +70degree C / -31F to +158F
- Ambient temperature: -35degree C to +70degree C / -31F to +158F
- Storage condition: 1 year in +20degree C / 50% RH (shelf life for adhesive)
- Expected lifetime: Years in normal operating conditions
- Personalization options: Pre-encoding, customized dual-sided full-color artwork, customer-specific visual printing